Prediction of Bed-Load Transport by Desert Flash Floods
Publication: Journal of Hydraulic Engineering
Volume 122, Issue 3
Abstract
A number of predictive bed-load sediment transport equations are rated against a unique set of field data collected by automatic slot samplers during flash floods in a desert wadi. The Meyer-Peter and Müller equation is shown to perform well, providing a median ratio of calculated to observed ( C /O) bed-load flux of 1.18. The Bagnold equation is shown to underpredict considerably, with a median C /O of 0.44. The Parker equation performs better, though it still underpredicts with a median C /O of 0.78. The apparent success of the Meyer-Peter and Müller formula is attributed to the ready supply of sediment to the channel system in desert and semidesert environments. This ensures that the channel bed remains unarmored, in contrast to supply-limited, armored, perennial rivers of humid zones. It also ensures that bed-load flux responds to changing hydraulic conditions in a comparatively simple fashion.
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References
1.
Bagnold, R. A. (1980). “An empirical correlation of bedload transport rates in flumes and natural rivers.”Proc., Royal Soc. London, Series A, London, England, Vol. 372, 453–473.
2.
Bathurst, J. C. (1987). “Modelling and measuring sediment transport in channels with coarse bed material.”River channels: environment and process, K. S. Richards, ed., Blackwell Scientific Publ. Ltd., Oxford, England, 272–294.
3.
Buffington, J. M., Dietrich, W. E., and Kirchner, J. W. (1992). “Friction angle measurements on a naturally formed gravel streambed: implications for critical boundary shear stress.”Water Resour. Res., Vol. 28, 411–425.
4.
Carson, M. A., and Griffiths, G. A. (1987). “Bedload transport in gravel-bed channels.”J. Hydro., Wellington, New Zealand, Vol. 26, 1–151.
5.
Church, M. (1978). “Palaeohydrological reconstructions from a Holocene valley fill.”Fluvial sedimentology. Can. Soc. of Pet. Geologists Memoir; No. 5, A. D. Miall, ed., Can. Soc. of Pet. Geologists, Calgary, Alta., Canada, 743–772.
6.
Dietrich, W. E., Kirchner, J. W., Ikeda, H., and Iseya, F. (1989) “Sediment supply and the development of the coarse surface layer in gravel-bedded rivers.”Nature, Vol. 340, 215–217.
7.
Emmett, W. W. (1976). “Bedload transport in two large gravel-bed rivers, Idaho and Washington.”Proc., 3rd Federal Inter-Agency Sedimentation Conf., 4.101–4.114.
8.
Gomez, B., and Church, M. (1989). “An assessment of bed load sediment transport formulae for gravel bed rivers.”Water Resour. Res., Vol. 25, 1161–1186.
9.
Laronne, J. B., and Carson, M. A. (1976). “Interrelationships between bed morphology and bed material transport for a small gravel-bed channel.”Sedimentology, Vol. 23, 67–85.
10.
Laronne, J. B., and Reid, I. (1993). “Very high rates of bedload sediment transport by ephemeral desert rivers,”Nature, Vol. 366, 148–150.
11.
Laronne, J. B., Reid, I., Yitshak, Y., and Frostick, L. E. (1992). “Recording bedload discharge in a semiarid channel, Nahal Yatir, Israel.”Erosion and sediment tTransport monitoring programmes in river basins; Publ. N. 210, J. Bogen, D. E. Walling, and T. J. Day, eds., Int. Assoc. of Hydrol. Sci. (IA), Oslo, Norway, 79–86.
12.
Laronne, J. B., Reid, I., Yitshak, Y., and Frostick, L. E. (1994). “The non-layering of gravel streambeds under ephemeral flood regimes.”J. Hydro., Amsterdam, The Netherlands, Vol. 159, 353–363.
13.
Lisle, T. E., and Madej, M. A. (1992). “Spatial variation in armouring in a channel with high sediment supply.”Dynamics of gravel-bed rivers, P. Billi, R. D. Hey, C. R. Thorne, and P. Tacconi, eds., John Wiley & Sons, Ltd., Chichester, England, 277–291.
14.
Maddock, T. (1970). “Indeterminate hydraulics of alluvial channels.”J. Hydr. Div., ASCE, Vol. 96, 2309–2323.
15.
Meyer-Peter, E., and Müller, R. (1948). “Formulas for bedload transport.”Proc., Int. Assoc. of Hydr. Struct. Res., 39–64.
16.
Parker, G. (1979). “Hydraulic geometry of active gravel rivers.”J. Hydr. Div., ASCE, Vol. 105, 1185–1201.
17.
Parker, G. (1990). “Surface-based bedload transport relation for gravel rivers.”J. Hydr. Res., Vol. 28, 417–436.
18.
Parker, G., Klingeman, P. C., and McLean, D. G. (1982). “Bedload and size distribution in paved gravel-bed streams.”J. Hydr. Div., ASCE, Vol. 108, 544 571.
19.
Reid, I., and Laronne, J. B. (1995). “Bedload sediment transport in an ephemeral stream and a comparison with seasonal and perennial counterparts.”Water Resour. Res., Vol. 31, 773–781.
20.
Reid, I., Layman, J. T., and Frostick, L. E. (1980). “The continuous measurement of bedload discharge.”J. Hydr. Res., Vol. 18, 243–249.
21.
Reid, I., Frostick, L. E., and Brayshaw, A. C. (1992). “Microform roughness elements and the selective entrainment and entrapment of particles in gravel-bed rivers.”Dynamics of gravel-bed rivers, P. Billi, R. D. Hey, C. R. Thorne, and P. Tacconi, eds., John Wiley & Sons, Ltd., Chichester, England, 253–266.
22.
Shulits, S., and Hill, R. D. (1968). “Bedload formulas.”Rep. ARS-SCW-1, Agric. Res. Service, U.S. Dept. of Agr., Washington, D.C.
23.
Vanoni, V. A. (1975). Sedimentation engineering. American Society of Civil Engineers manual on sedimentation. ASCE, New York, N.Y.
24.
White, W. R., Milli, H., and Crabbe, A. D. (1973). “Sediment transport; and appraisal of available methods.”Rep. 119, U.K. Hydr. Res. Station, Wallingford, England.
25.
Yalin, M. S. (1972). Mechanics of sediment transport . Pergamon Press, Inc., Elmsford, N.Y.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 122 • Issue 3 • March 1996
Pages: 170 - 173
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Mar 1, 1996
Published in print: Mar 1996
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